Dangerous Flea & Tick Meds for Dogs

Using commercial products to control your pet's flea and tick problem carries some risks. According to the National Resources Defense Council (NRDC), there are several products on the market that may indeed kill ticks and fleas, but these same products may also have dangerous, even deadly, effects on your dog. Checking the ingredients before using any type of flea and tick product may save your pet's life.

  1. Adams Plus Flea and Tick Collar for Dogs and Cats

    • Do not use any flea or tick collars containing propoxur as it could be fatal to your pet.

      Adams Plus Flea and Tick Collars, contain the chemical propoxur. Propoxur has been shown by the EPA to be toxic to the nerve system and a probable carcinogen. This chemical is also included on California's list of cancer-causing agents. According to the National Resources Defense Council, you should avoid use of products containing propoxur as they can pose a high risk health hazard to your dog.

    Big Spot Shampoo for Dogs

    • Permethrin, found in some dog shampoos, can be toxic to your pets.

      Permethrin is a synthetic chemical formed from natural chemicals found in the chrysanthemum plant. Permethrin is found in Big Spot shampoo for dogs and is listed by the EPA as a possible carcinogenic. It is also suspected of causing allergic reactions and asthma as well as probable damage to the endocrine system. Use of products containing permethrin should especially be avoided in households with cats as they are particularly susceptible to its toxicity.

    Professional Pet Products Flea &Tick Spray

    • Resmethrin is derived from chrysanthemums.

      Professional Pet Products Flea & Tick spray contains resmethrin, a synthetic chemical classified as a pyrethroid, which is derived from chrysanthemums. Resmethrin can cause reproductive disorders in your dog and is listed by the European Union as toxic to the endocrine and liver systems. Use of any pet medications with ingredients classified as pyrethroids should be avoided due their high toxicity levels.